Protecting Bookmarks

Jay asked if there was a way to protect a bookmark so it could not be deleted. There is no way to do this in Word; there is no way to set a bookmark as "hidden" or to lock it in place. You might think that you can mark a bookmark as hidden because when you display the Bookmark dialog box (Insert | Bookmark) there is a check box named "Hidden Bookmarks." (Click here to see a related figure.) Word, in the normal course of using other tools, creates bookmarks that are normally hidden from view. For instance, Word uses hidden bookmarks for table of contents entries, cross-references, and captions. You cannot mark any of the bookmarks you create as "hidden," however.

Bookmarks, hidden or not, can be deleted very easily. All a user needs to do is select the text that contains the bookmark and then delete that text. If the bookmark is one that you have created, the user can use Insert | Bookmark to find and delete the bookmark on purpose.

One way you can stop a bookmark from being deleted is to protect a document for forms. This type of protection allows you to specify specific sections in your document that are to be protected. If you put a continuous section break before the text containing the bookmark you want protected and a continuous section break afterwards, you can protect just the section that contains the bookmark. (How to protect individual sections in a document has been discussed in other issues of WordTips.)

Once you've applied the document protection, a user can no longer select Insert | Bookmark to view what the different bookmarks are. This goes for any bookmarks in the document; the user won't be able to view the bookmarks in unprotected sections, either. The user can still select text in the unprotected sections of the document and delete that text, so it is possible to delete a bookmark in this way, but the same editing cannot take place in the protected section--so the bookmark there remains safe.

If you prefer to not divide your document into sections, another possible approach is to create a macro that protects the bookmarks. All you need to do is create a macro that is run every time the user makes a change to the document. The macro could check to make sure that your mandatory bookmark is still present. If it isn't, then the macro can undo the edit that triggered the macro in the first place.

Of course, such a macro will add a good deal of "overhead" to working with the document; running it after every character is added to a document or every character is deleted can be time consuming. There is no way around such an approach, however, since any document change can potentially affect your bookmark.